Resistance exercise and protein feeding Other
Conditions
Interventions
This is a 2 x 2 nested factorial RCT where participants will be randomized to a training intervention (higher or lower load) and then randomized within each arm to receive either whey or casein protei
Sponsors
McMaster University
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1. Between the ages of 18-35 years (inclusive) 2. Able to maintain a habitual diet and perform RET three times per week throughout the trial 3. Able to begin exercise (assessed by Get Active Questionnaire [GAQ]) 4. Understand the study procedures and sign this form providing informed consent to participate in the study
Exclusion criteria
Exclusion criteria: 1. Use of tobacco- or cannabis-related products (smoking or vaping) 2. A history of neuromuscular problems or muscle and/or bone-wasting diseases 3. Any acute or chronic illness; cardiac, pulmonary, liver, or kidney abnormalities; insulin- or non-insulin-dependent diabetes or other metabolic disorders (all ascertained through medical questionnaires) 4. Use of medications known to affect protein metabolism (i.e. corticosteroids, non-steroidal anti-inflammatory drugs (prescription use or daily use of over-the-counter medication), or prescription strength acne medications) 5. Have any electronic medical or metal implants 6. Currently pregnant or planning to get pregnant 7. Dairy allergy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Skeletal muscle mass assessed by D3-Cr-measured muscle mass at baseline and 10 weeks | — |
Secondary
| Measure | Time frame |
|---|---|
| Lean body mass: 1. Dual-energy x-ray absorptiometry (DXA)-measured lean body mass at baseline and 10 weeks. Muscle strength: 2. One repetition-maximum on a leg press machine and biceps curl measured at baseline, 5 and 10 weeks 3. Unilateral isometric maximum voluntary contraction of knee extension/elbow flexion measured at baseline and 10 weeks | — |
Countries
Canada
Contacts
Public ContactDerrick Van Every
Outcome results
None listed